메뉴 건너뛰기




Volumn 44, Issue 6, 1997, Pages 831-852

Geochemistry and tectonic setting of some Neoproterozoic and Early Cambrian volcanics in western New South Wales

Author keywords

Cambrian; Geochemistry; Neoproterozoic; Tectonics; Volcanic rocks

Indexed keywords

CAMBRIAN; GEOCHEMISTRY; PROTEROZOIC; TECTONIC SETTING; VOLCANIC ROCK;

EID: 0031447721     PISSN: 08120099     EISSN: 14400952     Source Type: Journal    
DOI: 10.1080/08120099708728358     Document Type: Article
Times cited : (86)

References (62)
  • 1
    • 0028193265 scopus 로고
    • Geological affinities of the Glenelg River Complex, western Victoria
    • ANDERSON J. A. C. & GRAY C. M. 1994. Geological affinities of the Glenelg River Complex, western Victoria. Australian Journal of Earth Sciences 41, 141-156.
    • (1994) Australian Journal of Earth Sciences , vol.41 , pp. 141-156
    • Anderson, J.A.C.1    Gray, C.M.2
  • 2
    • 0028584522 scopus 로고
    • Variations in magma source regions during large-scale continental extension, Death Valley region, western United States
    • ASMERON Y., JACOBSEN S. B. & WERNICKE B. P. 1994. Variations in magma source regions during large-scale continental extension, Death Valley region, western United States. Earth and Planetary Science Letters 125, 235-254.
    • (1994) Earth and Planetary Science Letters , vol.125 , pp. 235-254
    • Asmeron, Y.1    Jacobsen, S.B.2    Wernicke, B.P.3
  • 3
    • 84982733795 scopus 로고
    • A Palaeozoic suture in eastern Gondwana
    • BAILLIE P. W. 1985. A Palaeozoic suture in eastern Gondwana. Tectonics 4, 653-660.
    • (1985) Tectonics , vol.4 , pp. 653-660
    • Baillie, P.W.1
  • 4
    • 4043057718 scopus 로고
    • Geochemistry and petrogenesis of a basalt-benmoreitetrachyte suite from the southern part of the Gregory Rift, Kenya
    • BAKER B. H., GOLES G. G., LEEMAN W. P. & LINDSTROM M. M. 1979. Geochemistry and petrogenesis of a basalt-benmoreitetrachyte suite from the southern part of the Gregory Rift, Kenya. Contributions to Mineralogy and Petrology 55, 302-331.
    • (1979) Contributions to Mineralogy and Petrology , vol.55 , pp. 302-331
    • Baker, B.H.1    Goles, G.G.2    Leeman, W.P.3    Lindstrom, M.M.4
  • 5
    • 77957246480 scopus 로고
    • A transitional basalt-pantallerite sequence of fractional crystallization, the Boina centre (Afar Rift, Ethiopia)
    • BARBERI F., SANTACROCE R., FERRARA G., TREUIL M. & VARET J. 1975. A transitional basalt-pantallerite sequence of fractional crystallization, the Boina centre (Afar Rift, Ethiopia). Journal of Petrology 16, 22-56.
    • (1975) Journal of Petrology , vol.16 , pp. 22-56
    • Barberi, F.1    Santacroce, R.2    Ferrara, G.3    Treuil, M.4    Varet, J.5
  • 7
    • 0029768965 scopus 로고    scopus 로고
    • Precise U-Pb dating of a post-D2 metadolerite: Constraints for rapid tectonic development of the southern Adelaide Foldbelt during the Cambrian
    • CHEN Y. D. & Liu S. F. 1996. Precise U-Pb dating of a post-D2 metadolerite: constraints for rapid tectonic development of the southern Adelaide Foldbelt during the Cambrian. Journal of the Geological Society of London 153, 83-90.
    • (1996) Journal of the Geological Society of London , vol.153 , pp. 83-90
    • Chen, Y.D.1    Liu, S.F.2
  • 10
    • 0026012701 scopus 로고
    • Deformation style of the Castlemaine area, Bendigo-Ballarat Zone: Implications for evolution of crustal structure in central Victoria
    • Cox S. F., ETHERIDGE M. A., CAS R. A. F. & CLIFFORD B. A. 1991. Deformation style of the Castlemaine area, Bendigo-Ballarat Zone: implications for evolution of crustal structure in central Victoria. Australian Journal of Earth Sciences 38, 151-170.
    • (1991) Australian Journal of Earth Sciences , vol.38 , pp. 151-170
    • Cox, S.F.1    Etheridge, M.A.2    Cas, R.A.F.3    Clifford, B.A.4
  • 11
    • 0027074027 scopus 로고
    • Tectonic implications of Late Proterozoic-Early Palaeozoic igneous rock associations, western Tasmania
    • CRAWFORD A. J. & BERRY R. F. 1992. tectonic implications of Late Proterozoic-Early Palaeozoic igneous rock associations, western Tasmania. Tectonophysics 214, 37-56.
    • (1992) Tectonophysics , vol.214 , pp. 37-56
    • Crawford, A.J.1    Berry, R.F.2
  • 12
    • 0000785249 scopus 로고
    • Forearc evolution in the Tasman Geosyncline: The origin of the southeast Australian continental crust
    • CROOK K. A. W. 1980. Forearc evolution in the Tasman Geosyncline: the origin of the southeast Australian continental crust. Journal of the Geological Society of Australia 27, 215-232.
    • (1980) Journal of the Geological Society of Australia , vol.27 , pp. 215-232
    • Crook, K.A.W.1
  • 14
    • 84879880069 scopus 로고
    • Pacific margin of Laurentia and east Antarctica-Australia as a conjugate rift pair: Evidence and implications for an Eocambrian supercontinent
    • DALZIEL I. W. D. 1991. Pacific margin of Laurentia and east Antarctica-Australia as a conjugate rift pair: evidence and implications for an Eocambrian supercontinent. Geology 21, 598-601.
    • (1991) Geology , vol.21 , pp. 598-601
    • Dalziel, I.W.D.1
  • 15
    • 84879610808 scopus 로고
    • The source of central Andean magmas: Some considerations
    • Harmon R. S. & Rapela C. W. eds., Geological Society of America Special Paper 265
    • DAVIDSON J. P., HARMON R. S & WORNER G. 1991. The source of central Andean magmas: some considerations. In: Harmon R. S. & Rapela C. W. eds. Andean Magmatism and its Tectonic Setting, pp. 233-243. Geological Society of America Special Paper 265.
    • (1991) Andean Magmatism and Its Tectonic Setting , pp. 233-243
    • Davidson, J.P.1    Harmon, R.S.2    Worner, G.3
  • 16
    • 0028573366 scopus 로고
    • Early calc-alkaline magmatism in the Mogollon-Datil volcanic field, New Mexico, USA
    • DAVIS J. & HAWKESWORTH C. 1993. Early calc-alkaline magmatism in the Mogollon-Datil volcanic field, New Mexico, USA. Journal of the Geological Society of London 151, 825-843.
    • (1993) Journal of the Geological Society of London , vol.151 , pp. 825-843
    • Davis, J.1    Hawkesworth, C.2
  • 17
    • 0027868476 scopus 로고
    • The petrogenesis of 30-20 Ma basic and intermediate volcanics from the Mogollon-Datil volcanic field, New Mexico, USA
    • DAVIS J. & HAWKESWORTH C. 1994. The petrogenesis of 30-20 Ma basic and intermediate volcanics from the Mogollon-Datil volcanic field, New Mexico, USA. Contributions to Mineralogy and Petrology 115, 165-183.
    • (1994) Contributions to Mineralogy and Petrology , vol.115 , pp. 165-183
    • Davis, J.1    Hawkesworth, C.2
  • 19
    • 0008622248 scopus 로고
    • Tectonic implications of the immobile traceelement geochemistry of mafic rocks bounding the Wonominta Block
    • EDWARDS A. C. 1979. tectonic implications of the immobile traceelement geochemistry of mafic rocks bounding the Wonominta Block. Journal of the Geological Society of Australia 25, 459-465.
    • (1979) Journal of the Geological Society of Australia , vol.25 , pp. 459-465
    • Edwards, A.C.1
  • 21
    • 0028565596 scopus 로고
    • Review of Precambrian-Palaeozoic relationships at the craton margins of southeastern Australia and adjacent Antarctica
    • FLÖTTMANN T. & OLIVER R. 1994. Review of Precambrian-Palaeozoic relationships at the craton margins of southeastern Australia and adjacent Antarctica. Precambrian Research 69, 293-306.
    • (1994) Precambrian Research , vol.69 , pp. 293-306
    • Flöttmann, T.1    Oliver, R.2
  • 22
    • 0025594133 scopus 로고
    • Tectonic implications of Delamerian magmatism in South Australia and western Victoria
    • Jago J. B. & Moore P. S. eds., Geological Society of Australia Special Publication 16
    • FODEN J. D., TURNER S. P. & MORRISON R. S. 1990. Tectonic implications of Delamerian magmatism in South Australia and western Victoria. In: Jago J. B. & Moore P. S. eds. The Evolution of a late Precambrian-early Palaeozoic rift complex: the Adelaide Geosyncline, pp. 465-482. Geological Society of Australia Special Publication 16.
    • (1990) The Evolution of a Late Precambrian-Early Palaeozoic Rift Complex: The Adelaide Geosyncline , pp. 465-482
    • Foden, J.D.1    Turner, S.P.2    Morrison, R.S.3
  • 23
    • 84879580842 scopus 로고
    • Synextensional magmatism in the Basin and Range Province: A case study from the eastern Great Basin
    • GANS P. B., MAHOOD G. A. & SCHERMER E. R. 1989. Synextensional magmatism in the Basin and Range Province: a case study from the eastern Great Basin. Geological Society of America Special Paper 233, 1-53.
    • (1989) Geological Society of America Special Paper , vol.233 , pp. 1-53
    • Gans, P.B.1    Mahood, G.A.2    Schermer, E.R.3
  • 24
    • 0027045935 scopus 로고
    • Glenelg River Complex: Western margin of the Lachlan Foldbelt or extension of the Delamerian orogeny into western Victoria
    • GIBSON G. M. & NIHILL D. N. 1992. Glenelg River Complex: western margin of the Lachlan Foldbelt or extension of the Delamerian orogeny into western Victoria. Tectonophysics 214, 69-91.
    • (1992) Tectonophysics , vol.214 , pp. 69-91
    • Gibson, G.M.1    Nihill, D.N.2
  • 25
    • 84879889539 scopus 로고
    • Palaeozoic intraplate escape tectonics in Gondwanaland, and major strike-slip duplication in the Lachlan orogen of southeastern Australia
    • GLEN R. A., SCHEIBNER E. & VANDENBERG A. H. M. 1992. Palaeozoic intraplate escape tectonics in Gondwanaland, and major strike-slip duplication in the Lachlan orogen of southeastern Australia. Geology 20, 795-798.
    • (1992) Geology , vol.20 , pp. 795-798
    • Glen, R.A.1    Scheibner, E.2    Vandenberg, A.H.M.3
  • 26
    • 0025956418 scopus 로고
    • Deformation in the Ballarat Slate Belt, central Victoria, and implications for the crustal structure across southeastern Australia
    • GRAY D. R. & WILLMAN C. E. 1991. Deformation in the Ballarat Slate Belt, central Victoria, and implications for the crustal structure across southeastern Australia. Australian Journal of Earth Sciences 38, 171-202.
    • (1991) Australian Journal of Earth Sciences , vol.38 , pp. 171-202
    • Gray, D.R.1    Willman, C.E.2
  • 27
    • 84879885287 scopus 로고
    • Intracrustal detachments and implications for crustal evolution within the Lachlan Foldbelt of southeastern Australia
    • GRAY D. R., WILSON C. J. L. & BARTON T. J. 1991. Intracrustal detachments and implications for crustal evolution within the Lachlan Foldbelt of southeastern Australia. Geology 19, 574-577.
    • (1991) Geology , vol.19 , pp. 574-577
    • Gray, D.R.1    Wilson, C.J.L.2    Barton, T.J.3
  • 28
    • 0026287032 scopus 로고
    • Did the breakout of Laurentia turn Gondwanaland inside-out?
    • HOFFMAN P. F. 1991. Did the breakout of Laurentia turn Gondwanaland inside-out? Science 252, 1409-1412.
    • (1991) Science , vol.252 , pp. 1409-1412
    • Hoffman, P.F.1
  • 29
    • 0028811774 scopus 로고
    • Tertiary calc-alkaline magmatism associated with lithospheric extension in the Pacific Northwest
    • HOOPER P. R., BAILEY D. G. & MCCARLEY HOLDER G. A. 1995. Tertiary calc-alkaline magmatism associated with lithospheric extension in the Pacific Northwest. Journal of Geophysical Research 100, 10 303-10 319.
    • (1995) Journal of Geophysical Research , vol.100 , pp. 303-310
    • Hooper, P.R.1    Bailey, D.G.2    McCarley Holder, G.A.3
  • 30
    • 0027047160 scopus 로고
    • Observations on the tectonic evolution of the southern Adelaide Foldbelt
    • JENKINS R. J. F. & SANDIFORD M. 1992. Observations on the tectonic evolution of the southern Adelaide Foldbelt. Tectonophysics 214, 27-36.
    • (1992) Tectonophysics , vol.214 , pp. 27-36
    • Jenkins, R.J.F.1    Sandiford, M.2
  • 31
    • 4043121545 scopus 로고
    • Final report on E.L. 410-Mount Wright, N.S.W. CRA Exploration Report
    • GS1972/274 (unpubl.)
    • JOHNSON I. R. 1972. Final report on E.L. 410-Mount Wright, N.S.W. CRA Exploration Report. New South Wales Geological Survey File GS1972/274 (unpubl.).
    • (1972) New South Wales Geological Survey File
    • Johnson, I.R.1
  • 32
    • 0005206606 scopus 로고
    • Archaeocyathan biostratigraphy of the Gnalta Group at Mt Wright, New South Wales
    • KRUSE P. D. 1982. Archaeocyathan biostratigraphy of the Gnalta Group at Mt Wright, New South Wales. Palaeontographica A177, 129-212.
    • (1982) Palaeontographica , vol.A177 , pp. 129-212
    • Kruse, P.D.1
  • 34
    • 84879887154 scopus 로고
    • South China in Rodinia: Part of the missing link between Australia-East Antarctica and Laurentia
    • Li Z-X., ZHANG L. & POWELL C. MCA. 1995. South China in Rodinia: part of the missing link between Australia-East Antarctica and Laurentia. Geology 23, 407-410.
    • (1995) Geology , vol.23 , pp. 407-410
    • Li, Z.-X.1    Zhang, L.2    Powell, C.M.C.A.3
  • 35
    • 0000088784 scopus 로고
    • Mafic dykes and their tectonic setting in the southern Adelaide Foldbelt, South Australia
    • Parker A. J., Rickwood P. R. & Tucker D. H. eds., Balkema, Rotterdam
    • Liu S. F. & FLEMING P. D. 1990. Mafic dykes and their tectonic setting in the southern Adelaide Foldbelt, South Australia. In: Parker A. J., Rickwood P. R. & Tucker D. H. eds. Mafic dykes and emplacement mechanisms, pp. 401-413. Balkema, Rotterdam.
    • (1990) Mafic Dykes and Emplacement Mechanisms , pp. 401-413
    • Liu, S.F.1    Fleming, P.D.2
  • 36
  • 37
    • 0027060001 scopus 로고
    • Geological evolution of the Wonominta Block
    • MILLS K. J. 1992. Geological evolution of the Wonominta Block. Tectonophysics 214, 57-68.
    • (1992) Tectonophysics , vol.214 , pp. 57-68
    • Mills, K.J.1
  • 38
    • 0001342179 scopus 로고
    • Volcanic rock series in island arcs and active continental margins
    • MIYASHIRO A. 1974. Volcanic rock series in island arcs and active continental margins. American Journal of Science 274, 321-355.
    • (1974) American Journal of Science , vol.274 , pp. 321-355
    • Miyashiro, A.1
  • 39
    • 84879882566 scopus 로고
    • Southwest U.S.-East Antarctica connection: A hypothesis
    • MOORES E. M. 1991. Southwest U.S.-East Antarctica connection: a hypothesis. Geology 19, 425-428.
    • (1991) Geology , vol.19 , pp. 425-428
    • Moores, E.M.1
  • 40
    • 0025952648 scopus 로고
    • Early Devonian (Gedinnian) nonmarine strata present in a rapidly subsiding basin in far western New South Wales
    • NEEF G. & BOTTRILL R. S. 1991. Early Devonian (Gedinnian) nonmarine strata present in a rapidly subsiding basin in far western New South Wales. Sedimentary Geology 71, 195-212.
    • (1991) Sedimentary Geology , vol.71 , pp. 195-212
    • Neef, G.1    Bottrill, R.S.2
  • 41
    • 0002543432 scopus 로고
    • Cymbric Vale fauna of New South Wales and Early Cambrian biostratigraphy
    • ÖPIK A. A. 1975. Cymbric Vale fauna of New South Wales and Early Cambrian biostratigraphy. Bureau of Mineral Resources Bulletin 159.
    • (1975) Bureau of Mineral Resources Bulletin , pp. 159
    • Öpik, A.A.1
  • 42
    • 0021022794 scopus 로고
    • The role of subcontinental lithosphere in magma genesis at destructive plate margins
    • Hawkesworth C. J. & Norry M. J. eds., Shiva, Nantwich
    • PEARCE J. A. 1983. The role of subcontinental lithosphere in magma genesis at destructive plate margins. In: Hawkesworth C. J. & Norry M. J. eds. Continental Basalts and Mantle Xenoliths, pp. 230-249. Shiva, Nantwich.
    • (1983) Continental Basalts and Mantle Xenoliths , pp. 230-249
    • Pearce, J.A.1
  • 44
    • 84879879227 scopus 로고
    • Palaeomagnetic constraints on timing of the Neoproterozoic breakup of Rodinia and the Cambrian formation of Gondwana
    • POWELL C. MCA., LI Z. X., MCELHINNY M. W., MEERT J. G. & PARK J. K. 1993. Palaeomagnetic constraints on timing of the Neoproterozoic breakup of Rodinia and the Cambrian formation of Gondwana. Geology 21, 889-892.
    • (1993) Geology , vol.21 , pp. 889-892
    • Powell, C.M.C.A.1    Li, Z.X.2    McElhinny, M.W.3    Meert, J.G.4    Park, J.K.5
  • 46
    • 0028555984 scopus 로고
    • South Australian record of a Rodinian epicontinental basin and its mid-Neoproterozoic breakup (± 700 Ma) to form the Palaeo-Pacific Ocean
    • POWELL C. MCA., PREISS W. V., GATEHOUSE C. G., KRAPEZ B. & Li Z. X. 1994. South Australian record of a Rodinian epicontinental basin and its mid-Neoproterozoic breakup (± 700 Ma) to form the Palaeo-Pacific Ocean. Tectonophysics 237, 113-140.
    • (1994) Tectonophysics , vol.237 , pp. 113-140
    • Powell, C.M.C.A.1    Preiss, W.V.2    Gatehouse, C.G.3    Krapez, B.4    Li, Z.X.5
  • 49
    • 84954916474 scopus 로고
    • A plate tectonic model of the Palaeozoic tectonic history of NSW
    • SCHEIBNER E. 1974. A plate tectonic model of the Palaeozoic tectonic history of NSW. Journal of the Geological Society of Australia 20, 405-426.
    • (1974) Journal of the Geological Society of Australia , vol.20 , pp. 405-426
    • Scheibner, E.1
  • 50
    • 0028852258 scopus 로고
    • Relation of peralkaline magmatism to heterogeneous extension during middle Miocene, southeastern Nevada
    • SCOTT R. B., UNRUH D. M., SNEE L. W. et al. 1995. Relation of peralkaline magmatism to heterogeneous extension during middle Miocene, southeastern Nevada. Journal of Geophysical Research 100, 10 381-10 401.
    • (1995) Journal of Geophysical Research 100, 10 , vol.381-10 , pp. 401
    • Scott, R.B.1    Unruh, D.M.2    Snee, L.W.3
  • 52
    • 0002191549 scopus 로고
    • Preliminary interpretation of regional basement geology in northwestern New South Wales
    • STEVENS B. P. J. 1985. Preliminary interpretation of regional basement geology in northwestern New South Wales. New South Wales Geological Survey Quarterly Notes 61, 9-22.
    • (1985) New South Wales Geological Survey Quarterly Notes , vol.61 , pp. 9-22
    • Stevens, B.P.J.1
  • 53
    • 75649100267 scopus 로고
    • Chemical and isotopic systematics of oceanic basalts-implications for mantle compositions and processes
    • Saunders A. D & Norry M. J. eds., Geological Society of London Special Publication 42
    • SUN S-S. & MCDONOUGH W. F. 1989. Chemical and isotopic systematics of oceanic basalts-implications for mantle compositions and processes. In: Saunders A. D & Norry M. J. eds. Magmatism in the Ocean Basins, pp. 313-345. Geological Society of London Special Publication 42.
    • (1989) Magmatism in the Ocean Basins , pp. 313-345
    • Sun, S.-S.1    McDonough, W.F.2
  • 54
    • 0000703340 scopus 로고
    • Geochemical application of spark source mass spectrometry. III. Element sensitivity, precision and accuracy
    • TAYLOR S. R. & GORTON M. P. 1977. Geochemical application of spark source mass spectrometry. III. Element sensitivity, precision and accuracy. Geochimica Cosmochimica Acta 41, 1375-1380.
    • (1977) Geochimica Cosmochimica Acta , vol.41 , pp. 1375-1380
    • Taylor, S.R.1    Gorton, M.P.2
  • 56
    • 0002866002 scopus 로고
    • The nature of mafic magmatism through the development of the Adelaide Geosyncline and the subsequent Delamerian Orogeny, South Australia
    • Parker A. J., Rickwood P. R. & Tucker D. H. eds., Balkema, Rotterdam
    • TURNER S. P & FODEN J. D. 1990. The nature of mafic magmatism through the development of the Adelaide Geosyncline and the subsequent Delamerian Orogeny, South Australia. In: Parker A. J., Rickwood P. R. & Tucker D. H. eds. Mafic dykes and emplacement mechanisms, pp. 431-434. Balkema, Rotterdam.
    • (1990) Mafic Dykes and Emplacement Mechanisms , pp. 431-434
    • Turner, S.P.1    Foden, J.D.2
  • 57
    • 0030435541 scopus 로고
    • Source of the Lachlan Fold Belt flysch linked to convective removal of the lithosphere mantle and rapid exhumation of the Delamerian-Ross fold belt
    • TURNER S. P., KELLEY S. P., VANDENBERG A. H. M., FODEN J. D., SANDIFORD M. & FLOTTMANN T. 1995. source of the Lachlan Fold Belt flysch linked to convective removal of the lithosphere mantle and rapid exhumation of the Delamerian-Ross fold belt. Geology 24, 941-944.
    • (1995) Geology , vol.24 , pp. 941-944
    • Turner, S.P.1    Kelley, S.P.2    Vandenberg, A.H.M.3    Foden, J.D.4    Sandiford, M.5    Flottmann, T.6
  • 59
    • 0027044103 scopus 로고
    • Geological framework and tectonic evolution in western Victoria
    • WILSON C. J. L., CAYLEY R. A. & CHEN S. 1992. Geological framework and tectonic evolution in western Victoria. Tectonophysics 214, 93-128.
    • (1992) Tectonophysics , vol.214 , pp. 93-128
    • Wilson, C.J.L.1    Cayley, R.A.2    Chen, S.3
  • 60
    • 8444246884 scopus 로고
    • Geochemical discrimination of different magma series and their differentiation products using immobile elements
    • WINCHESTER J. A. & FLOYD P. A. 1977. Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chemical Geology 20, 325-343.
    • (1977) Chemical Geology , vol.20 , pp. 325-343
    • Winchester, J.A.1    Floyd, P.A.2
  • 61
    • 84879882114 scopus 로고
    • Late Proterozoic stratigraphy and the Canada-Australia connection
    • YOUNG G. M. 1992. Late Proterozoic stratigraphy and the Canada-Australia connection. Geology 20, 215-218.
    • (1992) Geology , vol.20 , pp. 215-218
    • Young, G.M.1
  • 62
    • 0028603693 scopus 로고
    • Geochemistry of the Mt Wright Volcanics from the Wonominta Block, northwestern New South Wales
    • ZHOU B. & WHITFORD D. J. 1994. Geochemistry of the Mt Wright Volcanics from the Wonominta Block, northwestern New South Wales. Australian Journal of Earth Sciences 41, 331-340.
    • (1994) Australian Journal of Earth Sciences , vol.41 , pp. 331-340
    • Zhou, B.1    Whitford, D.J.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.